Origin of entomostracanfrom Modern Latin from entomo- (see entomo-) + Classical Greek ostrakon, a shell (see ostracize) + -an
any of a large variety of small crustaceans, as the copepods, barnacles, etc., formerly constituting a subclass (Entomostraca)
- (zoology) Relating to the Entomostraca.
- (zoology) One of the Entomostraca.
- The choice is open to maintain the last as an independent subclass, and to follow Claus in calling it the Leptostraca, or to introduce it among the Malacostraca as the Nebaliacea, or with Packard and Sars to make it an entomostracan subdivision under the title Phyllocarida.
- The first antennae have a lamellar appendage at the end of the peduncle, a decidedly non-entomostracan feature.
- (d) Darwinulidae, including the single species Darwinula stevensoni, Brady and Robertson, described as " perhaps the most characteristic Entomostracan of the East Anglian Fen District."
- The antennules (or first antennae) are almost universally regarded as true appendages, though they differ from all the other appendages in the fact that they are always innervated from the " brain " (or preoral ganglia), and that they are uniramous in the nauplius larva and in all the Entomostracan orders.